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Metabolite Regulation of Nuclear Localization of Carbohydrate-response Element-binding Protein (ChREBP): Role of AMP as an Allosteric Inhibitor

Journal Article · · Journal of Biological Chemistry
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3]
  1. Univ. of Texas Southwestern Medical Center, Dallas, TX (United States)
  2. National Inst. on Alcohol Abuse and Alcoholism, Bethesda, MD (United States)
  3. Univ. of Texas Southwestern Medical Center, Dallas, TX (United States); Dallas Veterans Affairs Medical Center, Dallas, TX (United States)

The carbohydrate-response element-binding protein (ChREBP) is a glucose-responsive transcription factor that plays an essential role in converting excess carbohydrate to fat storage in the liver. In response to glucose levels, ChREBP is regulated by nuclear/cytosol trafficking via interaction with 14-3-3 proteins, CRM-1 (exportin-1 or XPO-1), or importins. Nuclear localization of ChREBP was rapidly inhibited when incubated in branched-chain α-ketoacids, saturated and unsaturated fatty acids, or 5-aminoimidazole-4-carboxamide ribonucleotide. Here, we discovered that protein-free extracts of high fat-fed livers contained, in addition to ketone bodies, a new metabolite, identified as AMP, which specifically activates the interaction between ChREBP and 14-3-3. The crystal structure showed that AMP binds directly to the N terminus of ChREBP-α2 helix. Our results suggest that AMP inhibits the nuclear localization of ChREBP through an allosteric activation of ChREBP/14-3-3 interactions and not by activation of AMPK. As a result, AMP and ketone bodies together can therefore inhibit lipogenesis by restricting localization of ChREBP to the cytoplasm during periods of ketosis.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); Dept. of Veterans Affairs; Robert A. Welch Foundation
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1256357
Journal Information:
Journal of Biological Chemistry, Journal Name: Journal of Biological Chemistry Journal Issue: 20 Vol. 291; ISSN 0021-9258
Publisher:
American Society for Biochemistry and Molecular BiologyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

References (31)

Cytosolic phosphorylation potential. journal July 1979
The Equilibrium Constants of the Adenosine Triphosphate Hydrolysis and the Adenosine Triphosphate-Citrate Lyase Reactions journal October 1973
The Concentrations of Free and Bound Magnesium in Rat Tissues journal July 1973
The role of O-linked GlcNAc modification on the glucose response of ChREBP journal November 2010
Mechanism of Action of Compound-13: An α1-Selective Small Molecule Activator of AMPK journal July 2014
Insulin signaling in fatty acid and fat synthesis: a transcriptional perspective journal December 2010
Nutrient-sensing mechanisms and pathways journal January 2015
The ketone metabolite β-hydroxybutyrate blocks NLRP3 inflammasome–mediated inflammatory disease journal February 2015
Extraction, purification and identification of cytidine 3′,5′-cyclic monophosphate from rat tissues journal August 1984
From The Cover: Deficiency of carbohydrate response element-binding protein (ChREBP) reduces lipogenesis as well as glycolysis journal April 2004
Carbohydrate response element binding protein directly promotes lipogenic enzyme gene transcription journal October 2004
Xylulose 5-phosphate mediates glucose-induced lipogenesis by xylulose 5-phosphate-activated protein phosphatase in rat liver journal April 2003
A glucose-responsive transcription factor that regulates carbohydrate metabolism in the liver journal July 2001
Glucose and cAMP regulate the L-type pyruvate kinase gene by phosphorylation/dephosphorylation of the carbohydrate response element binding protein journal November 2001
Mechanism for Fatty Acid “Sparing” Effect on Glucose-induced Transcription: REGULATION OF CARBOHYDRATE-RESPONSIVE ELEMENT-BINDING PROTEIN BY AMP-ACTIVATED PROTEIN KINASE journal November 2001
Importin-α Protein Binding to a Nuclear Localization Signal of Carbohydrate Response Element-Binding Protein (ChREBP) journal June 2011
Structural Characterization of a Unique Interface between Carbohydrate Response Element-binding Protein (ChREBP) and 14-3-3β Protein journal October 2012
Metabolite Regulation of Nucleo-cytosolic Trafficking of Carbohydrate Response Element-binding Protein (ChREBP): ROLE OF KETONE BODIES journal August 2013
Regulation of Nuclear Import/Export of Carbohydrate Response Element-binding Protein (ChREBP): INTERACTION OF AN α-HELIX OF ChREBP WITH THE 14-3-3 PROTEINS AND REGULATION BY PHOSPHORYLATION journal July 2008
HIGH-YIELD PREPARATION OF ISOLATED RAT LIVER PARENCHYMAL CELLS: A Biochemical and Fine Structural Study journal December 1969
Coot model-building tools for molecular graphics journal November 2004
HKL -3000: the integration of data reduction and structure solution – from diffraction images to an initial model in minutes journal July 2006
Molecular replacement with MOLREP journal December 2009
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Microwave irradiation decreases ATP, increases free [Mg 2+ ], and alters in vivo intracellular reactions in rat brain journal November 2012
Suppression of Oxidative Stress by  -Hydroxybutyrate, an Endogenous Histone Deacetylase Inhibitor journal December 2012
Branched-Chain Amino Acid Metabolism journal July 1984
Deficiency of carbohydrate-activated transcription factor ChREBP prevents obesity and improves plasma glucose control in leptin-deficient ( ob/ob ) mice journal August 2006
Polyunsaturated fatty acids suppress glycolytic and lipogenic genes through the inhibition of ChREBP nuclear protein translocation journal October 2005
Salt-inducible kinase 2 links transcriptional coactivator p300 phosphorylation to the prevention of ChREBP-dependent hepatic steatosis in mice journal December 2010
O-GlcNAcylation Increases ChREBP Protein Content and Transcriptional Activity in the Liver journal April 2011

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15 N detection harnesses the slow relaxation property of nitrogen: Delivering enhanced resolution for intrinsically disordered proteins journal February 2018
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Stearoyl-CoA Desaturase 1 as a Therapeutic Target for the Treatment of Cancer journal July 2019
Regulation and Metabolic Significance of De Novo Lipogenesis in Adipose Tissues journal September 2018
The Role of Carbohydrate Response Element Binding Protein in Intestinal and Hepatic Fructose Metabolism journal February 2017